Hosted MCP server · #122 most used on Smithery

calculator-mcp-server

cyanheads/calculator-mcp-server

Evaluate, simplify, and differentiate mathematical expressions.

Install ↓Smithery ↗Website ↗

Uses: 4.4k
Tools: 1
Runs: Hosted
Listed: 7mo ago

Get started

Add it to your agent

npx -y @smithery/cli@latest install cyanheads/calculator-mcp-server --client claude

Swap --client claude for cursor, vscode, windsurf or another client. The CLI asks for any required settings.

claude mcp add --transport http calculator https://server.smithery.ai/cyanheads/calculator-mcp-server/mcp

A hosted server: nothing to install. Run /mcp in Claude Code to sign in if it asks.

[mcp_servers.calculator]
url = "https://server.smithery.ai/cyanheads/calculator-mcp-server/mcp"

Add to ~/.codex/config.toml.

{
  "mcpServers": {
    "calculator": {
      "url": "https://server.smithery.ai/cyanheads/calculator-mcp-server/mcp"
    }
  }
}

Add to ~/.cursor/mcp.json.

{
  "servers": {
    "calculator": {
      "type": "http",
      "url": "https://server.smithery.ai/cyanheads/calculator-mcp-server/mcp"
    }
  }
}

Add to .vscode/mcp.json.

gemini mcp add --transport http calculator https://server.smithery.ai/cyanheads/calculator-mcp-server/mcp

Saved to .gemini/settings.json.

What it can do

1 tool

calculate6 paramsEvaluate math expressions, simplify algebraic expressions, or compute symbolic derivatives. One expression per call. Supports arithmetic,…

Evaluate math expressions, simplify algebraic expressions, or compute symbolic derivatives. One expression per call. Supports arithmetic, trigonometry, statistics, matrices, complex numbers, units, and combinatorics.

Parameter	Type	Description
`scope`	object	Variable assignments for the expression. Example: { "x": 5, "y": 3 } makes "x + y" evaluate to 8.
`variable`		Variable to differentiate with respect to. Required when operation is "derivative". Empty string is treated as omitted. Example: "x".
`operation`	string	Operation to perform. "evaluate" computes a numeric result (default). "simplify" reduces an algebraic expression symbolically (e.g., "2x + 3x" -> "5 * x"). Supports algebraic and trigonometric identit
`precision`		Significant digits (1–16) for numeric results. Omit for full precision. Empty string is treated as omitted. Ignored for symbolic operations (simplify, derivative).
`expression`	string	One mathematical expression per call — neither `;` nor newlines separate statements. Inside matrices, `;` separates rows (e.g. `[1, 2; 3, 4]`). Supports arithmetic (+, -, *, /, ^, %), functions across
`numericType`	string	Numeric type for evaluate. "number" (default): 64-bit IEEE 754 float — fastest, standard precision. "BigNumber": arbitrary-precision decimal — use when intermediate values overflow 64-bit float (e.g.

Readable data

Resources

Calculator HelpAvailable functions, operators, constants, and syntax reference.